FULL PRODUCT VERSION :
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java VM: Java HotSpot(TM) Client VM (1.6.0-b105 mixed mode, sharing)

FULL OS VERSION :
Linux closettop 2.2.20 #1 Sat Apr 20 11:45:28 EST 2002 i686 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
I am running ant to compile ArgoUML (Open Source UML tool). After a while the JVM crashes.

When patching so that ant is started with the -Xint flag (as described below), the compilation is successful and some of the tests are successful but some tests crash with the same Internal Error. (Each JUnit test is run in a new JVM).

THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: Yes

THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Did not try

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
svn co http://argouml.tigris.org/svn/argouml/trunk argouml
cd argouml/src_new
./build.sh tests

EXPECTED VERSUS ACTUAL BEHAVIOR :
Expected ant to finish with either a BUILD SUCCESSFUL or BUILD FAILED after ArgoUML is compiled (model, mdr, core), tests are compiled, and the JUnit tests are run.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Attached seperatly

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Stick to JDK1.4 and JDK from Java5.